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Porsche // 911 & 912 (1965-1989) // 911 1987-1989 3.2L G50
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Timing Chain. Porsche 971.1 / 971.2 Panamera / 9YA Cayenne 2017-23 - PAB109229C
PAB109229C/1
Vehicle Group
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA Cayenne GTS V8 4.0L Petrol (460Hp) 2020-23
- Porsche 9YA Cayenne Coupe GTS V8 4.0L Petrol (460Hp) 2021-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
- Porsche 971.2 Panamera GTS 4.0L V8 2021-23
- Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
Information
Timing Chain.
Diagram Ref No 10
Timing chains operate continuously whenever the engine is running. Although designed for long service life, repeated mechanical loading, friction, heat and lubrication conditions can gradually cause wear to the chain pins, links and contact surfaces. Timing-chain guides, tensioners and sprockets may also deteriorate over time.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB109229C
The product you are viewing cross references to these numbers
The IWIS Timing Chain is a replacement internal engine timing component for compatible Porsche applications. It forms part of the engine's mechanical timing system, transferring rotational drive and helping maintain precise synchronisation between associated engine components.
Fits:
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA Cayenne GTS V8 4.0L Petrol (460Hp) 2020-23
- Porsche 9YA Cayenne Coupe GTS V8 4.0L Petrol (460Hp) 2021-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
- Porsche 971.2 Panamera GTS 4.0L V8 2021-23
- Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
Diagram Ref No 10
Timing chains operate continuously whenever the engine is running. Although designed for long service life, repeated mechanical loading, friction, heat and lubrication conditions can gradually cause wear to the chain pins, links and contact surfaces. Timing-chain guides, tensioners and sprockets may also deteriorate over time.
As wear increases, the effective length of the chain can increase, resulting in excessive slack, abnormal mechanical noise and potentially inaccurate engine timing. Severe deterioration can increase the risk of the chain jumping, derailing or failing.
What This Product Does:
The Timing Chain transfers mechanical rotation through the engine timing system while maintaining the required synchronisation between associated timing components.
Depending on the specific engine configuration, correct timing-chain operation helps support:
- Accurate engine timing
- Correct camshaft operation
- Correct valve timing
- Reliable mechanical synchronisation
- Consistent rotational drive
- Stable combustion
- Smooth engine operation
- Predictable throttle response
- Consistent power delivery
The chain must remain correctly tensioned, properly lubricated and accurately engaged with its sprockets for reliable operation.
Symptoms Of Wear Or Failure:
Possible symptoms of timing-chain or associated timing-system deterioration include:
- Metallic rattling or clattering
- Timing-chain rattle during cold starts
- Rattle immediately after engine start-up
- Mechanical noise from the timing area
- Noise that changes with engine RPM
- Excessive chain slack
- Timing-chain elongation
- Excessive tensioner travel
- Rough or irregular engine operation
- Unstable idle
- Difficult or extended starting
- Reduced engine performance
- Poor throttle response
- Engine misfires
- Check-engine warning
- Timing-related diagnostic fault codes
- Camshaft-position faults
- Crankshaft/camshaft correlation faults
- Variable camshaft timing faults, where applicable
- Visible chain wear
- Worn or damaged timing-chain guides
- Abnormal sprocket wear
- Metal or plastic wear debris in the engine oil or filter
These symptoms do not automatically confirm that the chain itself has failed. Defective tensioners, worn guides, damaged sprockets, variable timing components, sensors, wiring or lubrication problems can produce similar symptoms.
Why Replacement Matters:
The Timing Chain is a critical internal engine component.
Replacing a confirmed worn, elongated or damaged chain can help:
- Restore accurate mechanical synchronisation
- Maintain correct engine timing
- Restore dependable timing-chain operation
- Reduce excessive chain slack
- Reduce abnormal chain noise
- Maintain reliable sprocket engagement
- Protect timing-chain guides
- Protect associated sprockets
- Reduce the risk of timing deviation
- Reduce the risk of the chain jumping
- Reduce the risk of chain derailment
- Support smooth engine operation
- Protect expensive internal engine components
Continuing to operate an engine with a confirmed timing-chain fault can allow deterioration to progress and potentially result in a much more extensive engine repair.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB109229C
PAB109229C
9A710922900
The product you are viewing cross references to these numbers
Price: £112.14
Orderable
Related products
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Information
Camshaft timing chain. SPLIT TYPE.
Chain Type: Duplex,
Timing Chain Size: D67ZN
No. of chain links: 98
Fits:
Porsche 911 1965 - 1989
Porsche 964 1991 - 1993
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110552951
The product you are viewing cross references to these numbers
Chain Type: Duplex,
Timing Chain Size: D67ZN
No. of chain links: 98
Fits:
Porsche 911 1965 - 1989
Porsche 964 1991 - 1993
TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. Each car has two.
This OE Match camshaft timing chain is a replacement split-type timing chain for air-cooled Porsche 911 engines. It is designed to match the original-style fit and function, helping maintain correct camshaft timing and reliable valve train operation.
The camshaft timing chain links the crankshaft drive to the camshaft drive system, ensuring that the camshafts rotate in precise timing with the engine crankshaft. This correct timing allows the engine valves to open and close at the right moment for smooth running, correct combustion, and dependable engine performance.
The camshaft timing chain links the crankshaft drive to the camshaft drive system, ensuring that the camshafts rotate in precise timing with the engine crankshaft. This correct timing allows the engine valves to open and close at the right moment for smooth running, correct combustion, and dependable engine performance.
Functions
• Drives the camshaft timing system
• Helps keep crankshaft and camshaft timing synchronised
• Supports correct valve opening and closing timing
• Helps maintain smooth engine running and performance
• Provides a split-type design for easier installation during service
• Replaces stretched, worn, noisy, or damaged timing chains
• OE Match replacement for engine rebuilds and timing chain repairs
• Drives the camshaft timing system
• Helps keep crankshaft and camshaft timing synchronised
• Supports correct valve opening and closing timing
• Helps maintain smooth engine running and performance
• Provides a split-type design for easier installation during service
• Replaces stretched, worn, noisy, or damaged timing chains
• OE Match replacement for engine rebuilds and timing chain repairs
Why Replace This Part?
Camshaft timing chains are subject to constant load, heat, oil exposure, and high-speed operation. Over time, the chain can stretch, wear, become noisy, or affect accurate cam timing. A worn timing chain may cause rattling noises, poor running, incorrect valve timing, or reduced engine performance. Replacing the chain during engine service or rebuild helps restore timing accuracy and long-term reliability.
Camshaft timing chains are subject to constant load, heat, oil exposure, and high-speed operation. Over time, the chain can stretch, wear, become noisy, or affect accurate cam timing. A worn timing chain may cause rattling noises, poor running, incorrect valve timing, or reduced engine performance. Replacing the chain during engine service or rebuild helps restore timing accuracy and long-term reliability.
When to Replace This Part
• The timing chain is stretched, worn, noisy, or damaged
• There is rattling from the cam chain housing area
• Camshaft timing is being reset or corrected
• The engine is being rebuilt or overhauled
• Chain ramps, sprockets, or tensioners are being replaced
• The timing chain covers or camshaft housings have been removed
• As preventative replacement during major engine service.
• The timing chain is stretched, worn, noisy, or damaged
• There is rattling from the cam chain housing area
• Camshaft timing is being reset or corrected
• The engine is being rebuilt or overhauled
• Chain ramps, sprockets, or tensioners are being replaced
• The timing chain covers or camshaft housings have been removed
• As preventative replacement during major engine service.
Where it fits on the car
This timing chain fits inside the engine timing chain housing, forming part of the camshaft drive system. It runs between the crankshaft-driven intermediate shaft sprocket and the camshaft sprocket assembly, depending on the engine layout.
This timing chain fits inside the engine timing chain housing, forming part of the camshaft drive system. It runs between the crankshaft-driven intermediate shaft sprocket and the camshaft sprocket assembly, depending on the engine layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110552951
91110552950
90110552950
91110552951
The product you are viewing cross references to these numbers
Price: £42.75
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Information
Timing Chain Split Link.
The OE Match Timing Chain Split Link is a precision-engineered replacement connecting link designed for Porsche timing chain systems. This small but essential component joins the ends of the timing chain, allowing secure installation and reliable operation of the engine's valve timing mechanism.
Fits:
Manufactured to OE specifications for strength, fit and durability, the split link is designed to withstand the constant loads, temperatures and operating conditions found within the timing chain assembly. It provides a secure connection that helps maintain accurate timing chain operation and overall engine reliability.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
911327339990
The product you are viewing cross references to these numbers
The OE Match Timing Chain Split Link is a precision-engineered replacement connecting link designed for Porsche timing chain systems. This small but essential component joins the ends of the timing chain, allowing secure installation and reliable operation of the engine's valve timing mechanism.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Manufactured to OE specifications for strength, fit and durability, the split link is designed to withstand the constant loads, temperatures and operating conditions found within the timing chain assembly. It provides a secure connection that helps maintain accurate timing chain operation and overall engine reliability.
What This Product Does:
- Connects and secures the ends of the engine timing chain.
- Allows installation or repair of the timing chain assembly.
- Maintains continuous timing chain operation.
- Supports accurate camshaft and crankshaft synchronisation.
- Helps ensure precise valve timing throughout the engine's operating range.
- Contributes to smooth engine performance and reliability.
Symptoms Of Wear Or Failure:
- Timing chain noise or rattling.
- Excessive timing chain slack.
- Visible wear or damage to the link components.
- Accelerated timing chain wear.
- Inconsistent engine timing.
- Reduced engine performance.
- Difficulty maintaining proper chain tension.
- Potential timing chain failure in severe cases.
Why Replacement Matters:
- The timing chain system is one of the most critical components within the engine, controlling the relationship between the crankshaft and camshafts. Although small, the split link plays a vital role in maintaining the integrity of the entire timing chain assembly.
- Over time, wear, corrosion, fatigue or damage during servicing can compromise the strength of the split link. A weakened or damaged link may accelerate chain wear or increase the risk of timing chain failure. Because timing-related failures can result in significant engine damage and costly repairs, replacing worn timing chain components during maintenance or engine rebuilds is highly recommended.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
911327339990
911327339990
90110553000
91110552951
91110552950
The product you are viewing cross references to these numbers
Price: £3.00
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Information
Chain Guide Rail, Brown.
The OE Match Brown Chain Guide Rail is a high-quality replacement timing chain guide designed for Porsche engines. This essential component provides a smooth, low-friction running surface for the timing chain, helping to maintain correct chain alignment and tension while reducing wear within the engine timing system.
Fits:
Manufactured from durable wear-resistant material and engineered to OE specifications, this brown chain guide rail is designed to withstand constant contact with the timing chain under high temperatures and demanding operating conditions. It is an important service item during engine rebuilds, timing chain maintenance or timing system overhauls.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110522205
The product you are viewing cross references to these numbers
The OE Match Brown Chain Guide Rail is a high-quality replacement timing chain guide designed for Porsche engines. This essential component provides a smooth, low-friction running surface for the timing chain, helping to maintain correct chain alignment and tension while reducing wear within the engine timing system.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Manufactured from durable wear-resistant material and engineered to OE specifications, this brown chain guide rail is designed to withstand constant contact with the timing chain under high temperatures and demanding operating conditions. It is an important service item during engine rebuilds, timing chain maintenance or timing system overhauls.
What This Product Does:
- Guides and supports the engine timing chain during operation.
- Maintains correct timing chain alignment.
- Helps reduce chain vibration and movement.
- Provides a low-friction wear surface for the chain.
- Supports accurate camshaft and crankshaft timing.
- Contributes to smooth engine operation and long-term reliability.
Symptoms Of Wear Or Failure:
- Timing chain rattling or excessive chain noise.
- Increased engine mechanical noise during start-up.
- Visible wear grooves or scoring on the guide surface.
- Cracked, chipped or broken guide material.
- Excessive timing chain movement.
- Accelerated timing chain wear.
- Inconsistent timing system operation.
- Plastic debris or guide material found during servicing.
Why Replacement Matters:
- Chain guide rails operate under constant load as the timing chain moves at high speed throughout the engine's operating range. Over time, the guide material can wear, harden, crack or become brittle due to heat cycles, oil exposure and age.
- A worn chain guide rail can allow excessive chain movement, increasing stress on the timing chain, sprockets and tensioners. If guide deterioration becomes severe, fragments may break away, potentially leading to accelerated timing system wear and costly engine repairs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110522205
91110522205
90110522202
90110522203
91110522204
The product you are viewing cross references to these numbers
Price: £3.50
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Information
Chain guide rail, Black.
This guide rail maintains correct chain alignment, reduces wear on the timing chain and sprockets, and helps ensure accurate cam-shaft to crank-shaft timing over the life of the engine. Manufactured to match the original Porsche geometry, this rail provides direct-fit installation and restores proper chain path, quiet operation and long service life.
Sold each, 5 required per car.
Fits:
Porsche 911 1966 - 1989
Diagram ref no 2
• Position: Timing gearcase — the guide rail that supports/locates the front timing chain (or chains), depending on engine version.
• Function: Guides the timing chain to prevent excessive slack, misalignment or premature wear; supports longevity and accurate timing performance.
The timing chain guide rail is a critical component in the timing system of air-cooled Porsche engines: if the guide is worn, cracked, warped or missing, it can cause chain vibration, accelerated wear of the chain/sprockets, timing errors, noise or even catastrophic engine damage. Replacing it with a proper rail ensures correct chain path, quieter operation and long-term reliability.
When and why to replace:
• Timing chain slap or rattle is audible at startup or under load
• Visible wear on the existing guide rail (grooving, cracking, deformation)
• During engine rebuild or timing chain service when the covers are already open
• High-mileage or track-used engines where timing-system components have extended service life.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110522207
The product you are viewing cross references to these numbers
This guide rail maintains correct chain alignment, reduces wear on the timing chain and sprockets, and helps ensure accurate cam-shaft to crank-shaft timing over the life of the engine. Manufactured to match the original Porsche geometry, this rail provides direct-fit installation and restores proper chain path, quiet operation and long service life.
Sold each, 5 required per car.
Fits:
Porsche 911 1966 - 1989
Diagram ref no 2
• Position: Timing gearcase — the guide rail that supports/locates the front timing chain (or chains), depending on engine version.
• Function: Guides the timing chain to prevent excessive slack, misalignment or premature wear; supports longevity and accurate timing performance.
The timing chain guide rail is a critical component in the timing system of air-cooled Porsche engines: if the guide is worn, cracked, warped or missing, it can cause chain vibration, accelerated wear of the chain/sprockets, timing errors, noise or even catastrophic engine damage. Replacing it with a proper rail ensures correct chain path, quieter operation and long-term reliability.
When and why to replace:
• Timing chain slap or rattle is audible at startup or under load
• Visible wear on the existing guide rail (grooving, cracking, deformation)
• During engine rebuild or timing chain service when the covers are already open
• High-mileage or track-used engines where timing-system components have extended service life.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110522207
91110522206
91110522207
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Price: £4.85
In stock